ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)

vol 63 / December, 2020

DOI 10.17586/0021-3454-2017-60-5-420-425

UDC 381.53.08.519


V. M. Medunetskiy
ITMO University, Saint Petersburg, 197101 Russian Federation; Professor

K. P. Pompeev
ITMO University, Department of Instrumentation Technology, St. Petersburg;

A. V. Rasshchupkin
Radio Technical Apparatus Factory JSC; ITMO University, Department of Instrumentation Technologies; Production Engineer, Undergraduate Student

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Abstract. Cutting mode parameters for fine milling of hard materials on a multi-axis machining centers in production of space device parts are studied. Interdependence of the treatment process characteristics having the greatest impact on occurrence of parasitic vibrations in the cutting zone is revealed. The influence of cutting speed on parameters of the vibrating activity of the milling system in high speed milling mode is demonstrated. Vibratory activity that occurs during titanium alloy processing with milling machining center is investigated. The energy dissipation coefficient for vibration velocity is determined based on analysis of the data obtained using vibro-compensator in the process of fine milling. Dependence of the loss factor is derived considering the effects for high-speed machining of titanium alloys with application of the damping elements. Basic results of the study of dynamic processes occurring during end milling at high frequency and affecting the dimension processing errors are presented.
Keywords: CNC machine, dissipation of energy, titanium alloys, milling system, damper system

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